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My ~/.irbrc file
# IRBRC file by Iain Hecker, http://iain.nl
# put all this in your ~/.irbrc
require 'rubygems'
require 'yaml'
alias q exit
class Object
def local_methods
(methods - Object.instance_methods).sort
end
end
ANSI = {}
ANSI[:RESET] = "\e[0m"
ANSI[:BOLD] = "\e[1m"
ANSI[:UNDERLINE] = "\e[4m"
ANSI[:LGRAY] = "\e[0;37m"
ANSI[:GRAY] = "\e[1;30m"
ANSI[:RED] = "\e[31m"
ANSI[:GREEN] = "\e[32m"
ANSI[:YELLOW] = "\e[33m"
ANSI[:BLUE] = "\e[34m"
ANSI[:MAGENTA] = "\e[35m"
ANSI[:CYAN] = "\e[36m"
ANSI[:WHITE] = "\e[37m"
# Build a simple colorful IRB prompt
IRB.conf[:PROMPT][:SIMPLE_COLOR] = {
:PROMPT_I => "#{ANSI[:BLUE]}>>#{ANSI[:RESET]} ",
:PROMPT_N => "#{ANSI[:BLUE]}>>#{ANSI[:RESET]} ",
:PROMPT_C => "#{ANSI[:RED]}?>#{ANSI[:RESET]} ",
:PROMPT_S => "#{ANSI[:YELLOW]}?>#{ANSI[:RESET]} ",
:RETURN => "#{ANSI[:GREEN]}=>#{ANSI[:RESET]} %s\n",
:AUTO_INDENT => true }
IRB.conf[:PROMPT_MODE] = :SIMPLE_COLOR
# Loading extensions of the console. This is wrapped
# because some might not be included in your Gemfile
# and errors will be raised
def extend_console(name, care = true, required = true)
if care
require name if required
yield if block_given?
$console_extensions << "#{ANSI[:GREEN]}#{name}#{ANSI[:RESET]}"
else
$console_extensions << "#{ANSI[:GRAY]}#{name}#{ANSI[:RESET]}"
end
rescue LoadError
$console_extensions << "#{ANSI[:RED]}#{name}#{ANSI[:RESET]}"
end
$console_extensions = []
# Wirble is a gem that handles coloring the IRB
# output and history
extend_console 'wirble' do
Wirble.init
Wirble.colorize
end
# Hirb makes tables easy.
extend_console 'hirb' do
# command out the following options to get tables for everything
Hirb.enable # :output=>{'Object'=>{:class=>:auto_table, :ancestor=>true}}
extend Hirb::Console
end
# awesome_print is prints prettier than pretty_print
extend_console 'ap' do
alias pp ap
end
# When you're using Rails 2 console, show queries in the console
extend_console 'rails2', (ENV.include?('RAILS_ENV') && !Object.const_defined?('RAILS_DEFAULT_LOGGER')), false do
require 'logger'
RAILS_DEFAULT_LOGGER = Logger.new(STDOUT)
end
# When you're using Rails 3 console, show queries in the console
extend_console 'rails3', defined?(ActiveSupport::Notifications), false do
$odd_or_even_queries = false
ActiveSupport::Notifications.subscribe('active_record.sql') do |*args|
$odd_or_even_queries = !$odd_or_even_queries
color = $odd_or_even_queries ? ANSI[:CYAN] : ANSI[:MAGENTA]
time = "%.1fms" % ((args[2] - args[1]) * 1000)
name = args.last[:name]
sql = args.last[:sql].gsub("\n", " ").squeeze(" ")
puts " #{ANSI[:UNDERLINE]}#{color}#{name} (#{time})#{ANSI[:RESET]} #{sql}"
end
end
# Add a method pm that shows every method on an object
# Pass a regex to filter these
extend_console 'pm', true, false do
def pm(obj, *options) # Print methods
methods = obj.methods
methods -= Object.methods unless options.include? :more
filter = options.select {|opt| opt.kind_of? Regexp}.first
methods = methods.select {|name| name =~ filter} if filter
data = methods.sort.collect do |name|
method = obj.method(name)
if method.arity == 0
args = "()"
elsif method.arity > 0
n = method.arity
args = "(#{(1..n).collect {|i| "arg#{i}"}.join(", ")})"
elsif method.arity < 0
n = -method.arity
args = "(#{(1..n).collect {|i| "arg#{i}"}.join(", ")}, ...)"
end
klass = $1 if method.inspect =~ /Method: (.*?)#/
[name.to_s, args, klass]
end
max_name = data.collect {|item| item[0].size}.max
max_args = data.collect {|item| item[1].size}.max
data.each do |item|
print " #{ANSI[:YELLOW]}#{item[0].to_s.rjust(max_name)}#{ANSI[:RESET]}"
print "#{ANSI[:BLUE]}#{item[1].ljust(max_args)}#{ANSI[:RESET]}"
print " #{ANSI[:GRAY]}#{item[2]}#{ANSI[:RESET]}\n"
end
data.size
end
end
# Show results of all extension-loading
puts "#{ANSI[:GRAY]}~> Console extensions:#{ANSI[:RESET]} #{$console_extensions.join(' ')}#{ANSI[:RESET]}"
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